Testicular torsion, or testis torsion, is an emergency condition. It happens when the spermatic cord, which provides blood flow to the testicle, rotates and becomes twisted. The twisting cuts off the testicle's blood supply and causes sudden pain and swelling.
What is NuGold? NuGold, also called red brass, Merlin's Gold, and Jeweler's Bronze, is an alloy that usually contains 85% copper and 15% zinc. It tarnishes similar to copper. I have pieces that have been in my sample trays for several months that barely show a tarnish.
Nickel is a hard, corrosion resistant metal. It can be electroplated onto other metals to form a protective coating. Finely divided nickel is used as a catalyst for the hydrogenation of vegetable oils. Adding nickel to glass gives it a green color.